Results 71 to 80 of about 15,484 (216)

Miniaturised experimental simulation and combined modelling of open-die forging of Ti-6Al-4V titanium alloy

Journal of Materials Research and Technology
This study demonstrates the application of a new experimental technique for laboratory-scale simulation of the open-die forging process, known as cogging, an intermediate hot-working process necessary to design an optimised microstructure in the advanced
David Connolly, Mathieu Fabris, Giribaskar Sivaswamy, Salaheddin Rahimi, Vassili Vorontsov   +4 more
doaj   +1 more source

Prognostics and Health Management in Polymer Electrolyte Fuel Cells: Current Trends, Challenges, and Future Directions

Fuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT Prognostics and health management are crucial for the reliability and lifetime assessment of polymer electrolyte fuel cells (PEFCs). Here, we review the current advances on this topic, focusing mainly on key degradation mechanisms and methodologies such as physics‐aware, data‐driven, and hybrid modeling approaches.
Farideh Abdollahi, Kourosh Malek, Thomas Kadyk, Nadiia Kulyk, Christophe Gerling, Michael H. Eikerling   +5 more
wiley   +1 more source

Effect of Surface Treatment of Multi-Directionally Forged (MDF) Titanium Implant on Bone Response

Metals, 2019
Multi-directional forging (MDFing) of titanium drastically improved its mechanical properties due to the evolution of an ultrafine-grained structure. Forging strain was repeatedly applied while changing the forging axis during MDFing.
Ginga Suzuki, Masatsugu Hirota, Noriyuki Hoshi, Katsuhiko Kimoto, Hiromi Miura, Masao Yoshinari, Tohru Hayakawa, Chikahiro Ohkubo   +7 more
doaj   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

Application‐Grade TiAl Single Crystal With Excellent Room‐Temperature Plasticity and Strength Prepared by Seeded Electromagnetic Confinement Directional Solidification

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang, Jun Shen, Xiao‐Yu Gao, Shao‐Kai Zheng, Xiao‐Hua Lu, Cong Zhao, Xu‐Dong Wang, Jia‐Jun Zhao, Jia‐Xin Li, Xiao‐An Yue   +9 more
wiley   +1 more source

Study on the plasticity improvement mechanism and grain refinement of AZ80 Mg alloy under cryogenic multi-directional forging

Journal of Materials Research and Technology
The introduction of twin lamellae and dislocation interaction through Multi-directional forging (MDF) at room temperature (RT) has been reported to significantly improve the mechanical properties of Mg alloys.
Shuchang Li, Zhuo Wang, Xi Zhao, Xiangdong Wang, Jianmin Yu   +4 more
doaj   +1 more source

Grain Growth Model of Ultra-Fine Grain AZ80 Magnesium Alloy Multi-Directionally Forged During the Isothermal Heating Process

Medžiagotyra, 2019
This paper takes the ultra-fine grain AZ80 magnesium alloy multi-directionally forged as the research object. We observe its heating behavior at 673 K with an optical microscope, analyze the grain size distribution, and the change of average grain size ...
Jinlong ZHANG, Hui XIE, Ying MA, Shiping TAO, Kun ZHAO, Weigang WU   +5 more
doaj   +1 more source

ACROSS LANGUAGE BORDERS: WRITING INTEGRATION AND BELONGING IN KINDERTRANSPORT DIARIES

German Life and Letters, Volume 79, Issue 2, Page 129-147, April 2026.
ABSTRACT The diaries of six Kindertransport refugees who fled Nazi persecution in Germany and Austria to Britain in 1938 and 1939 offer unique insights into how language use reflects negotiations of identity and belonging. Moving beyond traditional concepts of bilingualism, a translingual framework reveals how these young refugees navigated between ...
Monja Stahlberger
wiley   +1 more source

Využití numerických simulací při optimalizaci technologických procesů objemového tváření za studena [PDF]

, 2012
The paper deals with numerical and physical modelling aimed at optimisation of production technology and designing of manufacturing tools with use of finite-element method.
Brumar, Tomáš, Kedroň, Jan, Rusz, Stanislav, Salajka, Michal, Tylšar, Stanislav   +4 more
core  

Numerical simulation of multi-directional hot forging for the reduction of forging defects

, 2015
Hot forging is a metal forming process widely used in the industry. Among the many advantages are the possibility of severe plastic deformation and the improvement of mechanical properties, leading to the continued development of forging for industrial applications.
Septímio, Rudimylla da S., Button, Sergio T.   +1 more
openaire   +1 more source